I am writer but never had the time to create a blog for myself. Till date, I have been writing only for my clients.

At the moment I have about 30-35 empty blogs with me (about 4 months) at blogger.com and wordpress.com which I used to use solely for checking up my stuff.

I wanted to know whether I can use these blogs to generate money. Maybe write blog posts for myself and use them.

I truly need some suggestions related to whether they can be used for adsense or not, whether I can use them to earn money through other resources or not. It is my desires to earn about 500USD per month from each of these blogs in coming 6 months.

I am looking forward to your suggestions.